CN116160939A - Tank car and pneumatic control system thereof - Google Patents
Tank car and pneumatic control system thereof Download PDFInfo
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- CN116160939A CN116160939A CN202111416444.XA CN202111416444A CN116160939A CN 116160939 A CN116160939 A CN 116160939A CN 202111416444 A CN202111416444 A CN 202111416444A CN 116160939 A CN116160939 A CN 116160939A
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- air outlet
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- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000007791 liquid phase Substances 0.000 claims description 18
- 239000012071 phase Substances 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/22—Tank vehicles
- B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/22—Tank vehicles
- B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
- B60P3/2245—Adaptations for loading or unloading
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides a tank truck and a pneumatic control system thereof. The pneumatic control system comprises an air cylinder, a baffle valve, a parking assembly and an emergency cut-off valve group. The baffle valve comprises a control valve and a baffle plate, the control valve comprises an air inlet, a first air outlet, a second air outlet and an air outlet, the air inlet is communicated with the air storage cylinder to obtain an air source, and the baffle plate is in an open state and a closed state; the parking assembly is communicated with the first air outlet; the emergency cut-off valve group is communicated with the second air outlet and is communicated with the tank body of the tank truck; when the baffle is in a closed state, the air inlet is communicated with the first air outlet, the parking assembly acquires an air source tank car to release a parking braking state, the second air outlet is communicated with the air outlet, and the tank body cannot acquire an air source and cannot be filled or discharged; when the baffle is in an open state, the air inlet is communicated with the second air outlet, the first air outlet is communicated with the air outlet, the parking assembly cannot acquire an air source, and therefore the tank truck is in a parking braking state, and the tank body can acquire the air source and can fill or discharge liquid.
Description
Technical Field
The invention relates to the field of pneumatic systems of tank trucks, in particular to a tank truck and a pneumatic control system thereof.
Background
Currently, the GB 7258-2017 (regulations on motor vehicle operation safety technology) requires that a tank-type dangerous goods transport vehicle provided with an emergency cut-off device is designed and manufactured to ensure that the emergency cut-off can be automatically closed when the running speed of the vehicle for transporting liquid dangerous goods is higher than 5Km/h, or an obvious signal device (such as an acoustic or optical signal) can be used for prompting a driver to close an emergency cut-off valve when an engine is started. "in the" liquefied frozen gas tank truck "of NB/T47508-2017, it is required that" the tank truck should be installed to prevent the loading and unloading hose from breaking or equipment damage caused by accidentally starting the tank truck "in the filling process, in order to meet the above-mentioned standard at the same time, the implementation scheme in the trade is to adopt the audible and visual alarm mounted on the tank truck, send the audible and visual alarm before the vehicle runs, in order to remind the operator to close the emergency cut-off valve, and utilize the operation box door of the tank truck to close the control parking system, when the operation box door is opened, the valve works, the tank truck is in the braking state; the operation box door is closed, and the tank truck releases the brake. However, the above embodiment can only remind an operator, cannot ensure that the emergency cut-off valve is in a closed state, and the sound of the audible and visual alarm is too loud to affect the environment.
Disclosure of Invention
The invention aims to provide a tank truck capable of closing an emergency cut-off valve set when starting and preventing a loading and unloading hose from being broken when unexpected driving and a pneumatic control system thereof, so as to solve the problems in the prior art.
In order to solve the technical problems, the invention provides a pneumatic control system for a tank truck, comprising:
the air cylinder is internally stored with an air source;
the baffle valve comprises a control valve and a baffle plate, wherein the control valve comprises an air inlet, a first air outlet, a second air outlet and an air outlet, the air inlet is communicated with the air storage cylinder and can acquire the air source, and the baffle plate is provided with an opening state and a closing state;
the parking assembly is communicated with the first air outlet of the control valve;
the emergency cut-off valve group is communicated with the second air outlet of the control valve and is communicated with the tank body of the tank truck;
when the baffle is in the closed state, the air inlet is communicated with the first air outlet, so that the parking assembly can acquire an air source to enable the tank truck to release the parking brake state, the second air outlet is communicated with the air outlet, and the tank body cannot acquire the air source and cannot fill or discharge liquid; when the baffle is in the open state, the air inlet is communicated with the second air outlet, the first air outlet is communicated with the air outlet, the parking assembly cannot acquire an air source, so that the tank truck is in a parking braking state, and the tank body can acquire the air source and can fill or discharge liquid.
In one embodiment, the tank truck is provided with a filling port for filling or discharging the tank body;
when the baffle is in a closed state, the baffle shields the filling opening, and when the baffle is in an open state, the baffle exposes the filling opening.
In one embodiment, the baffle is rotatable relative to the canister and has the open state and the closed state;
when the baffle is in the closed state, the baffle horizontally extends, and when the baffle is in the open state, the baffle vertically extends.
In one embodiment, the baffle comprises a connecting portion and a stopping portion, wherein the connecting portion is in a strip shape, one end of the connecting portion is connected with the stopping portion, the other end of the connecting portion is rotatable relative to the tank body, and the size of the stopping portion is larger than that of the filling opening.
In one embodiment, the emergency cut-off valve set comprises a cut-off main valve, three manual valves arranged in parallel at the downstream of the cut-off main valve, and a pressurized gas phase emergency cut-off valve, a pressurized liquid phase emergency cut-off valve and a liquid inlet and outlet emergency cut-off valve which are respectively arranged at the downstream of the manual valves, wherein the pressurized gas phase emergency cut-off valve is communicated with a gas phase space of the tank body, the pressurized liquid phase emergency cut-off valve and the liquid inlet and outlet emergency cut-off valve are both communicated with a liquid phase space of the tank body, and the cut-off main valve is communicated with a second air outlet of the control valve so as to further convey an air source into the tank body.
In one embodiment, the tank truck comprises an operation box, the cut-off main valve is located outside the operation box, and the manual valve, the pressurized gas phase emergency cut-off valve, the pressurized liquid phase emergency cut-off valve and the liquid inlet and outlet emergency cut-off valve are all located in the operation box.
In one embodiment, the tanker includes an operator box and the flapper valve is located within the operator box.
In one embodiment, the air reservoir is located in a central location of the chassis of the tank truck.
The invention also provides a tank truck comprising the pneumatic control system.
According to the technical scheme, the invention has the advantages and positive effects that:
the pneumatic control system comprises an air cylinder, a baffle valve, a parking assembly and an emergency cut-off valve group. The air cylinder is switched between the open state and the closed state through the baffle plate of the baffle valve, and is communicated with the parking assembly and the emergency cut-off valve group, so that the tank truck can only fill or discharge liquid when the parking brake is released, the emergency cut-off valve group is closed when the tank truck releases the brake of the tank truck, and the filling or discharge liquid cannot be carried out, and meanwhile, the requirements of GB 7258-2017 motor vehicle operation safety technical regulations and NB/T47508-2017 liquefied frozen gas tank truck are met.
Drawings
FIG. 1 is a schematic diagram of the pneumatic control system of the present invention.
The reference numerals are explained as follows: 11. an air cylinder; 12. a flapper valve; 13. a park assembly; 141. cutting off the main valve; 142. a first manual valve; 143. a second manual valve; 144. a third manual valve; 145. a pressurized gas phase emergency shut-off valve; 146. a pressurized liquid phase emergency shut-off valve; 147. an emergency cut-off valve for liquid inlet and outlet; 2. a tank body.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It will be understood that the invention is capable of various modifications in various embodiments, all without departing from the scope of the invention, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the invention.
For the purpose of further illustrating the principles and structure of the present invention, preferred embodiments of the invention will now be described in detail with reference to the accompanying drawings.
The invention provides a tank truck which is particularly suitable for transporting dangerous chemicals. The tank truck can simultaneously meet the requirements of closing the emergency cut-off valve and preventing the hose from being broken by accident when being started, namely, the tank truck can be filled or discharged only when being in a parking state, and further, the situation that the loading and unloading hose is broken or equipment is damaged can not occur; when the tank truck is in a parking releasing state, the emergency stop valve is closed, and the tank body cannot be filled or discharged at all.
Specifically, the tank car includes chassis, the jar body that is located on the chassis, sets up in the operation box and the pneumatic control system of jar body tail end.
The tank is used for loading medium. Wherein the medium may be a hazardous chemical.
The chassis and the tank body are not improved, and the structures of the chassis and the tank body are all of structures in the related art, so that the chassis and the tank body are not described in detail.
The operation box is box-shaped and is provided with a containing space. The holding space is internally provided with a filling port and other pipeline accessories. The filling port is communicated with the inside of the tank body, and the tank body is filled or discharged with liquid, namely medium is loaded or unloaded through a loading and unloading hose.
The utility model provides a mainly improve pneumatic control system to make tank car close emergency cut-off valve when starting, and can't carry out filling or unload liquid when the tank car is gone, thereby break loading and unloading hose when unexpected driving.
Referring to fig. 1, the pneumatic control system includes an air reservoir 11, a flapper valve 12, a park assembly 13, and an emergency shutdown valve assembly. The air cylinder 11 is sequentially supplied with air to the parking assembly 13 or the emergency valve bank through the action of the baffle valve 12, and only one of the parking assembly 13 and the emergency valve bank can acquire an air source, so that when the parking assembly 13 acquires the air source and is in a parking release state, the emergency valve bank is closed, filling or discharging of the tank body 2 cannot be performed, and when the parking assembly 13 cannot acquire the air source and is in a parking state, the emergency valve bank acquires the air source and can fill or discharge the tank body 2.
The air cylinder 11 stores an air source. Specifically, the air cylinder 11 is disposed at the middle position of the chassis. The intermediate position is a position including the center in the longitudinal direction and the center in the width direction of the chassis.
In this embodiment, the air cylinder 11 is a brake air cylinder 11.
The flapper valve 12 is located within the operator's compartment. Flapper valve 12 includes a flapper and a control valve. The control valve comprises an air inlet, a first air outlet, a second air outlet and an air outlet. The first air outlet and the second air outlet can be communicated with the air inlet, the first air outlet and the second air outlet can also be communicated with the exhaust port, and when any one of the first air outlet and the second air outlet is communicated with the air inlet, the other air outlet is communicated with the exhaust port.
The air inlet communicates with the air reservoir 11, and the air source in the air reservoir 11 can be obtained. The first air outlet is communicated with the parking assembly 13, and the second air outlet is communicated with the emergency cut-off valve group. The exhaust port is communicated with the outside and is used for exhausting the air source to the outside.
The shutter has an open state and a closed state. When the baffle is in a closed state, the air inlet is communicated with the first air outlet, and the second air outlet is communicated with the air outlet. When the baffle is in an open state, the air inlet is communicated with the second air outlet, and the first air outlet is communicated with the air outlet.
The baffle is located in the operation box and is rotatable relative to the tank body 2, so that the baffle has an open state and a closed state, i.e. the baffle can be rotated to be far away from the filling opening to expose the filling opening or rotated to the filling opening to shield the filling opening. Specifically, when the baffle is in the closed state, the baffle shields the filling port, so that the loading and unloading hose cannot communicate with the filling port. When the flap is in an open state, the flap exposes the filling port so that the loading and unloading hose can communicate with the filling port.
The baffle includes a connecting portion and a stopper portion. The connecting part is long, one end of the connecting part is connected with the stop part, and the other end of the connecting part can rotate relative to the tank body 2. In this embodiment, a fixing portion is disposed in the operation box, and the connecting portion is rotatably connected with the fixing portion, so as to realize the rotation of the connecting portion relative to the tank 2.
The stop part is used for shielding the filling opening. Specifically, the size of the stopper is larger than the size of the filling port, so that the filling port can be completely shielded. In this embodiment, the filling opening is circular, and correspondingly, the stop portion is also circular. When the stop part is connected with the connecting part, the connecting part is positioned on the diameter extension line of the stop part.
When the baffle is in a closed state, the baffle horizontally extends, and the connecting part horizontally extends. When the baffle is in an open state, the baffle extends vertically, and the connecting part extends vertically.
The switching between the closed state and the open state of the baffle is realized manually, namely, the baffle is switched between the closed state and the open state by manual rotation.
The parking assembly 13 is in communication with the first outlet of the control valve to enable access to the air source for contact with the parking brake. Specifically, the park assembly 13 includes a brake double chamber cylinder. The double-cavity air cylinder is communicated with the first air outlet.
The parking assembly 13 further comprises a parking emergency valve for controlling the on-off of the parking brake line in an emergency situation. The parking emergency valve is arranged on the chassis.
The emergency cut-off valve group is communicated with the second air outlet of the control valve and is communicated with the tank body 2, so that the tank body 2 can acquire an air source.
Specifically, the emergency cutoff valve group includes a cutoff master valve 141, three manual valves disposed in parallel downstream of the cutoff master valve 141, and a pressurized gas phase emergency cutoff valve 145, a pressurized liquid phase emergency cutoff valve 146, and a liquid in-out emergency cutoff valve 147 disposed downstream of the manual valves, respectively.
The cut-off main valve 141 is disposed downstream of the second air outlet and is used for controlling the on-off between the tank 2 and the second air outlet. Specifically, the cut-off main valve 141 is provided outside the operation box, and the cut-off main valve 141 is a valve controlled manually. When an emergency is met, the on-off between the tank body 2 and the second air outlet can be controlled manually directly outside the operation box.
In this embodiment, the shut-off main valve 141 is a two-position three-way valve, and includes an air inlet, an air outlet, and an air outlet, wherein the air inlet is communicated with the second air outlet of the control valve, the air outlet is communicated with the outside, and the air outlet is communicated with the manual valve.
Three manual valves, a pressurized gas phase emergency shut-off valve 145, a pressurized liquid phase emergency shut-off valve 146, and a liquid in-out emergency shut-off valve 147 are all located in the operation box.
The three manual valves are a first manual valve 142, a second manual valve 143, and a third manual valve 144, respectively, and the first manual valve 142, the second manual valve 143, and the third manual valve 144 are disposed in parallel. Specifically, the first manual valve 142, the second manual valve 143, and the third manual valve are two-position three-way valves, and are opened and closed by manual control.
The pressurized gas phase emergency shut-off valve 145 is disposed downstream of the first manual valve 142 and communicates with the gas phase space of the tank 2, thereby enabling the gas source to be delivered to the gas phase space of the tank 2. The first manual valve 142 can control the opening and closing of the pressurized gas phase emergency shut off valve 145.
The pressurized liquid phase emergency shut-off valve 146 is disposed downstream of the second manual valve 143 and communicates with the liquid phase space of the tank 2, thereby being capable of delivering a gas source to the liquid phase space of the tank 2. The second manual valve 143 can control the opening and closing of the pressurized liquid phase emergency shut-off valve 146.
The liquid inlet/outlet emergency shut-off valve 147 is disposed downstream of the second manual valve 143 and communicates with the liquid phase space of the tank 2, thereby enabling the air supply to be delivered to the liquid phase space of the tank 2. The third manual valve 144 can control the opening and closing of the in-out hydraulic emergency shut-off valve 147.
As is clear from the above configuration, the total shutoff valve 141 can simultaneously close the pressurized gas phase emergency shutoff valve 145, the pressurized liquid phase emergency shutoff valve 146, and the inlet/outlet emergency shutoff valve 147.
The working principle of the pneumatic control system in this embodiment is as follows:
the baffle plate of the baffle valve 12 is manually rotated to a closed state, namely, the baffle plate is shielded at the filling opening, the loading and unloading hose cannot be communicated with the filling opening, and further, filling or unloading of liquid to the tank body 2 cannot be carried out.
The air inlet of the baffle valve 12 is communicated with the first air outlet, the air source in the air cylinder 11 is conveyed into a braking double-cavity air cylinder of the parking assembly 13, the braking double-cavity air cylinder is ventilated, and the tank truck releases the parking brake and can run. The second air outlet of the baffle valve 12 is communicated with the air outlet, the air source of the second air outlet is discharged through the air outlet, and the emergency cut-off valve is in a closed state and cannot convey the air source into the tank body 2, so that the tank body 2 cannot be filled or discharged.
When the vehicle travels to the destination and the tank 2 needs to be filled or discharged, the flapper valve 12 is manually rotated to an open state, that is, the flapper exposes the filling port, so that the loading/unloading hose can be communicated with the filling port.
The air inlet of the flapper valve 12 communicates with the second air outlet and the first air outlet communicates with the air outlet. Because the gas of the first gas outlet is discharged to the outside through the gas outlet, the braking double-cavity cylinder of the parking assembly 13 is exhausted, and the tank car is in a parking braking state. The air inlet is communicated with the second air outlet, so that the air cylinder 11 is communicated with the emergency cut-off valve group, and then an air source is provided for the tank body 2, so that the tank body 2 can be filled or discharged with liquid.
Thus, in the present embodiment, the air cylinder 11 is switched between communication with the parking assembly 13 and communication with the emergency shutdown valve group by switching the flapper of the flapper valve 12 between the open state and the closed state, that is:
when the baffle plate of the baffle valve 12 is in an open state, namely when the tank truck is in a parking release state, namely when the tank truck can be started, the emergency cut-off valve group is necessarily in a closed state, and at the moment, the baffle plate shields the filling port and cannot be connected with the loading and unloading hose, so that the requirements of GB 7258-2017 'safety technical regulations for motor vehicle operation' are met.
According to the technical scheme, the invention has the advantages and positive effects that:
the pneumatic control system comprises an air cylinder, a baffle valve, a parking assembly and an emergency cut-off valve group. The air cylinder is switched between the open state and the closed state through the baffle plate of the baffle valve, and is communicated with the parking assembly and the emergency cut-off valve group, so that the tank truck can only fill or discharge liquid when the parking brake is released, the emergency cut-off valve group is closed when the tank truck releases the brake of the tank truck, and the filling or discharge liquid cannot be carried out, and meanwhile, the requirements of GB 7258-2017 motor vehicle operation safety technical regulations and NB/T47508-2017 liquefied frozen gas tank truck are met.
While the invention has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (9)
1. A pneumatic control system for a tanker truck, comprising:
the air cylinder is internally stored with an air source;
the baffle valve comprises a control valve and a baffle plate, wherein the control valve comprises an air inlet, a first air outlet, a second air outlet and an air outlet, the air inlet is communicated with the air storage cylinder and can acquire the air source, and the baffle plate is provided with an opening state and a closing state;
the parking assembly is communicated with the first air outlet of the control valve;
the emergency cut-off valve group is communicated with the second air outlet of the control valve and is communicated with the tank body of the tank truck;
when the baffle is in the closed state, the air inlet is communicated with the first air outlet, so that the parking assembly can acquire an air source to enable the tank truck to release the parking brake state, the second air outlet is communicated with the air outlet, and the tank body cannot acquire the air source and cannot fill or discharge liquid; when the baffle is in the open state, the air inlet is communicated with the second air outlet, the first air outlet is communicated with the air outlet, the parking assembly cannot acquire an air source, so that the tank truck is in a parking braking state, and the tank body can acquire the air source and can fill or discharge liquid.
2. The pneumatic control system of claim 1, wherein the tank truck has a fill port to fill or discharge the tank;
when the baffle is in a closed state, the baffle shields the filling opening, and when the baffle is in an open state, the baffle exposes the filling opening.
3. The pneumatic control system of claim 2, wherein the flapper is rotatable relative to the canister and has the open state and the closed state;
when the baffle is in the closed state, the baffle horizontally extends, and when the baffle is in the open state, the baffle vertically extends.
4. The pneumatic control system of claim 2, wherein the baffle comprises a connecting portion and a stop portion, the connecting portion being elongated, one end being connected to the stop portion, the other end being rotatable relative to the canister, the stop portion being larger in size than the filling port.
5. The pneumatic control system of claim 1, wherein the emergency shut-off valve assembly comprises a shut-off main valve, three manual valves disposed in parallel downstream of the shut-off main valve, and a pressurized gas phase emergency shut-off valve, a pressurized liquid phase emergency shut-off valve and a liquid in-out emergency shut-off valve disposed downstream of the manual valves, respectively, wherein the pressurized gas phase emergency shut-off valve is in communication with the gas phase space of the tank, the pressurized liquid phase emergency shut-off valve and the liquid in-out emergency shut-off valve are both in communication with the liquid phase space of the tank, and the shut-off main valve is in communication with the second gas outlet of the control valve, thereby enabling the delivery of a gas source into the tank.
6. The pneumatic control system of claim 5, wherein the tank truck includes an operator box, the shut-off master valve is located outside the operator box, and the manual valve, the pressurized gas phase emergency shut-off valve, the pressurized liquid phase emergency shut-off valve, and the liquid in-out emergency shut-off valve are all located within the operator box.
7. A pneumatic control system as claimed in claim 1 wherein the tanker includes an operator box, the flapper valve being located within the operator box.
8. The pneumatic control system of claim 1, wherein the air reservoir is located at an intermediate location of the chassis of the tank car.
9. A tank truck comprising a pneumatic control system as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111416444.XA CN116160939A (en) | 2021-11-25 | 2021-11-25 | Tank car and pneumatic control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111416444.XA CN116160939A (en) | 2021-11-25 | 2021-11-25 | Tank car and pneumatic control system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116160939A true CN116160939A (en) | 2023-05-26 |
Family
ID=86420624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111416444.XA Pending CN116160939A (en) | 2021-11-25 | 2021-11-25 | Tank car and pneumatic control system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116160939A (en) |
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2021
- 2021-11-25 CN CN202111416444.XA patent/CN116160939A/en active Pending
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